Gas regulator and automatic shut-off



J. H. HOLLOWAY ens naemmon AND Au'roxmc ,snu'r-oir' Mar. 3. 1925.

I Filed April 27.1923

, Wi -misses Patented Mar. 3, 1925.

UNITED {STATES JERRY H. HOLLOWAY, or Ar'rnRsoN, OKLAHOMA.

GAS REGULATOR AND AUTOMATIC SITUT-OFF.

'Application filed April 27, 1923; Serial N0. 635,085.

To all whom it may concern:

7 Be it known that I, JERRY H. HOLLOWAY,

a citizen of the llnited States, residing at. Apperson, in the county of Osage and State of Oklahoma, have invented certain new and useful Improvements in Gas Regulators and Automatic Shut-Offs, of which the following nuts above and below, as illustrated.

ing is a specification.

The objectofithis invention is to provide an instrument that will regulate gas pres-i ftrated at 25.

a valve should the gas in the service main'be' cut off, and will not open when the gas in:

L nection with the' accompanying drawing forming part of this-application. The invention residing in the construction, combination and arrangement of parts as claimed. g

In the accompanying drawing which represents a central cross-sectional view of the invention, partly in elevation the various parts will be referred to by numbers. And, whereas,

1 is a round base. 2 is a housing which is attached to the base 1. 3 is a housing cover which is attached to the housing 2. 4;

is the valve operating housing which is at-' is a needle valve of any suitable design. 8'

is a bellows support which is attached to the inside of the base 1, as shown. 9 is a bellows which'is attached to the support 8. 10 is a cover attached to the bellows 9. 11 is a coil spring of suitable design having association with the top of the cover 10 and the plate 12, as shown. 13 is an adjusting screw for the purpose hereinafter described. 14 is a bracket attached to the underside of the cover 10. 15 is an outlet pipe. '16 is abutterfly valve arranged in the outlet pipe 15. 17 is an operating lever for the butterfiy valve 16. 18 is a connecting rod extending from the lever 17 to the bracket 14. 19'

A. further object of the invention is to pro vide 'a device of this nature that will close? is a lever pivotally attached to, the top of the cover 10, as shown. The lever 1911s also pivotally attached to the-housing 1, asshown at. 20.1 21 is a cam which operates the needle valve stem 22. 23 is -a rod connecting the lever 19 and the cam 21; 24 is a disk arranged on theneedle valve'22 having adjust- The upper partof the needle valve stem 22 is threaded into the lower part, as illusbutterfly valve'move in opposite directions when they are actuating simultaneously. However, normally the butterfly valve ,16 comes into closing action only upon the extreme upward stroke ot the needle valve.

Thus, whenpressure rises within the service main without tripping the regulator, the ne'edle'valvewill vdescend as the diaphragm raises to normal conditions, at which time/the butterfly valve 16 will normally open. It is therefore obvious that the flow of I gas is not stopped entirely but simply placed under control. 7

Only upon two occasions does the needle valve entirely close. When the gas supply is cut ofi upon either the intake or the discharge side of the regulator. In the eventthe said supply is cut off from the intake side, the diaphragm drops down, thereby closing the butterfly valve and opening the needle valve to theextreme top of the stroke thereof, at which "time-the disc 24 trips out of the cam 21, thus releasing the same, al-

lowing the spring 27 to seat the needle valve. Thus both valves are closed in the absence of flow. I

When the gas supply is cut ottfroin the discharge side of the regulator, the back pressure raises the diaphragm until the needle valve closes the butterfly valve being simultaneously operated, thereby cutting off the gas supply. from the intake side'also. However, nnmedi'ately upon demand for gas by the discharge side of the regulator, the diaphragm will drop and open the needle valve to allow the required'pressure to pass. It will be seen that the said needle valve functions in accordancevwith the varying pressure of the gas l w,

The butterfly valve has normally only one function. When the gas pressure is sufficiently low to require-the needlevalveto be fully open, and the diaphragm down to the bottom of the stroke to allow the closed position of the former, to supply the demand; should the pressure in the service main suddenly rise, the results may possibly be disastrous. The butterfly valve is adapted to check or control the pressure of the gas 'su liici'ently to allow only a minimum flow of the latter to pass't-hrough the pipe 15, the latter being of such size that the movements of'the valve 16 shall not affect the-normal flow of gas therethrough during the movement of the bellows regulator.

It is't-herefore obvious that the present invention contemplates the provision of a reg ulator which will effectually govern the otherwise varying pressure obtained from a gas main,

What I claim is:

1. A gas regulator of the character described, the combination of a housing, an inlet pipe attached to said housing, an outlet pipe attached to said housing, a bellows disposed in said housing, a valvedisposed in said outlet pipe having'operatable connection with said bellows, a valve disposed'in said inlet'pipe having operatable connection with said bellows.

2. An expandible member in association with an accumulating chamber, an inlet pipe attached to said chamber, an outlet pipe attached to said chamber, a valve disposed in said inlet pipe and means for automatically regulating said valve. as said expandible; member expands and contracts, a valve disposed in said outlet pipe and means for reg ulating said valve as the said expandible member expands and contracts.

3. A gas regulator and automatic shut off of the character described, comprising a housing base, a housing mounted thereon, a cover mounted upon said housing, a support arranged inside of said housing base, a bellows mounted upon said support, a cover mounted on said bellows, a coil spring mounted on said bellows cover, an adjusting screw arranged'in said housing cover to operate the tension of the aforementioned spring, a bracket arranged on the underside of the aforementioned bellows cover, an outlet pipe arranged on the aforementioned base, a butterfly valve arranged in said outlet pipe, an operating lever attached thereto, a connecting rod between said operating lever and the aforementioned bracket, an inlet pipe arranged in the aforementioned base, a needle valve arranged in said inlet pipe, a lever housing attached to the side of the aforementioned housing, a lever pivotally attached to said lever housing, also pivotallyattached to the aforementioned bellows cover, a 'j awed cam pivotally attached to said lever housing, a. connecting rod connecting said cam and the aforementioned lever, a needle valve'stem extending from the aforementioned needle valve through the aforementioned lever housing, a disk adjustably arranged on said needle valve stem in the aforementioned lever housing having association with the jaw of the aforementioned jawed cam. As shown and described.

JERRY H. l-IOLLOVAY.

VVitnes'ses r C. B. TONY, JR, FRED L. BRONSON. 

